{extend name="base:base"}
{block name="body"}
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
    <legend> 暂时没有升级功能 </legend>
</fieldset>
<a class="layui-btn layui-btn-big" href="/">访问首页</a>
{/block}